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Who

Rick Yang

10% owner

Company insider

Files Form 4 as: 10% owner, Korro Bio; 10% owner, SpyGlass Pharma; Director and 10% owner, NeueHealth; 10% owner, MBX Biosciences; 10% owner, Savara; 10% owner, Monte Rosa Therapeutics.

Every Form 4 they filed

In numbers

Trades disclosed
69
Buys
6
Sells
1
Bought
$64.6M
Sold
$25K
Companies
6
Companies where not an officer
6
First trade
28 Jun 2021
Last trade
10 Mar 2026
Last filed
12 Mar 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
KRRO Korro Bio10% owner · Biotechnology · last 10 Mar 20262 buys · 0 sells
SGP SpyGlass Pharma10% owner · Medical Devices · last 9 Feb 20261 buy · 0 sells
NeueHealthDirector, 10% owner · last 2 Oct 20250 buys · 1 sell
MBX MBX Biosciences10% owner · Biotechnology · last 16 Sep 20241 buy · 0 sells
SVRA Savara10% owner · Biotechnology · last 17 Jul 20231 buy · 0 sells
GLUE Monte Rosa Therapeutics10% owner · Biotechnology · last 28 Jun 20211 buy · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
10 Mar 2026filed 12 Mar 2026KRRO Korro BioBiotechnologySEC FORM 4 Bought$2.3M207,100 at $11.11filing
10 Mar 2026filed 12 Mar 2026KRRO Korro Biooption or derivative · BiotechnologySEC FORM 4 Code P$2.7M242,945 at $11.11filing
10 Mar 2026filed 12 Mar 2026KRRO Korro Biooption or derivative · BiotechnologySEC FORM 4 Code P$2.7M242,945 at $11.11filing
10 Mar 2026filed 12 Mar 2026KRRO Korro BioBiotechnologySEC FORM 4 Bought$2.3M207,100 at $11.11filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass PharmaMedical DevicesSEC FORM 4 Code C—1,619,240filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass PharmaMedical DevicesSEC FORM 4 Code C—1,370,168filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass PharmaMedical DevicesSEC FORM 4 Code C—1,370,168filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass Pharmaoption or derivative · Medical DevicesSEC FORM 4 Code C—1,619,240filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass Pharmaoption or derivative · Medical DevicesSEC FORM 4 Code C—1,370,168filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass Pharmaoption or derivative · Medical DevicesSEC FORM 4 Code C—1,370,168filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass Pharmaoption or derivative · Medical DevicesSEC FORM 4 Code C—737,962filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass PharmaMedical DevicesSEC FORM 4 Code C—737,962filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass PharmaMedical DevicesSEC FORM 4 Bought$15.0M937,500 at $16.00filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass Pharmaoption or derivative · Medical DevicesSEC FORM 4 Code C—1,619,240filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass Pharmaoption or derivative · Medical DevicesSEC FORM 4 Code C—1,370,168filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass Pharmaoption or derivative · Medical DevicesSEC FORM 4 Code C—1,370,168filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass PharmaMedical DevicesSEC FORM 4 Code C—1,619,240filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass PharmaMedical DevicesSEC FORM 4 Code C—1,370,168filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass PharmaMedical DevicesSEC FORM 4 Code C—1,370,168filing
9 Feb 2026filed 11 Feb 2026SGP SpyGlass PharmaMedical DevicesSEC FORM 4 Code C—737,962filing

Sectors

Health Care6
Not placed1

Buys in green, sells in red, by the company’s sector.

Related people

Jean Francois FormelaDirector · Director at Korro Bio, filing Form 4 there in the last year
Oliver DolanSenior Vice President, Finance · Senior Vice President, Finance at Korro Bio, filing Form 4 there in the last year
Lynx1 Capital Management LP10% owner · 10% owner at Korro Bio, filing Form 4 there in the last year
Ram AiyarPresident and CEO · President and CEO at Korro Bio, filing Form 4 there in the last year
Todd ChappellChief Operating Officer · Chief Operating Officer at Korro Bio, filing Form 4 there in the last year
Matthew BowenPrincipal Accounting Officer · Also traded GLUE in the last 90 days
Salomon AzoulayChief Medical Officer · Also traded MBX in the last 90 days